Deuteronomy 2:32-35

Then Sihon and all his army came out and fought us at Jahaz, but the LORD our God gave Sihon to us. We defeated him, his sons, and all his army. We captured all his cities at that time and completely destroyed them, as well as the men, women, and children. We left no one alive. But we kept the cattle and valuable things from the cities for ourselves.